is it real

Well

If it's not Marked it's most likely not real.

On diamonds you can try Cutting Glass

But no matter what, If I Wanted to know for sure,
Short of Buying the Experts Testers,
I'd take it to an Expert.
 

Upvote 0
pawn shops test gold before buying it -- get them to test it for you for "free" then turn down their "pitiful" offer for it
 

Upvote 0
Trying to cut glass can damage even a real diamond.
There are many gold and diamond testers for sale online.
An expert is the best way to know for sure.
Here are a couple simple tests but the first one only works for unmounted diamonds.

1. Draw a small dot on a clean piece of paper.
2. Place the diamond / cubic zirconia in question face down on the dot.
3. Look through the bottom. If it is a real diamond you should not be able to see the dot; the image should be distorted. If your stone is a cubic zirconia (CZ) the dot will become a circle that is clearly visible.


Diamonds have unique molecular properties. If you shine a black light (long-wave ultraviolet light ) on a stone and it will glow with different colors depending on what it is. A real diamond will usually glow blue, cubic zirconia will glow mustard yellow, and glass will not glow at all.
 

Upvote 0
Glass will glow under black light.Depends on what's in it.These are some items that glowed for me.Normally it's the older type glass.Also nearly every old stopper top aqua bottle I have found will glow under a black light. :thumbsup:
 

Attachments

  • 2009_0218GlowingGlass0002[1].JPG
    2009_0218GlowingGlass0002[1].JPG
    47.3 KB · Views: 442
  • 2009_0218GlowingGlass0003[1].JPG
    2009_0218GlowingGlass0003[1].JPG
    51.3 KB · Views: 443
  • 2009_0218GlowingGlass0002[1].JPG
    2009_0218GlowingGlass0002[1].JPG
    47.3 KB · Views: 422
  • 2009_0218GlowingGlass0003[1].JPG
    2009_0218GlowingGlass0003[1].JPG
    51.3 KB · Views: 420
Upvote 0
traderoftreasure said:
thats uranium glowing in marbles
Uranium Oxide,and was put in a lot of early types of glass.Dishes,bottles,beads,and marbles etc. :thumbsup: Mostly any glass with a greenish color to it.It's been put in glass as far back as 79AD. :o But we were talking diamonds and I guess they aren't green anyway. :laughing7: :thumbsup
OOOOp's I guess there are green diamonds.Never mine! :thumbsup: :read2:
 

Upvote 0
I don't get it? Is there a reason why you don't want to take it to a jeweler?
 

Upvote 0
I want to know why all of you 'left over hippies' have black lights??? :headbang: LOL . . .I've got one too I use to test for old paint and cracks in china. New paint will fluoresce, but old paint will not. Breezie
 

Upvote 0
Breezie said:
I want to know why all of you 'left over hippies' have black lights??? :headbang: LOL . . .I've got one too I use to test for old paint and cracks in china. New paint will fluoresce, but old paint will not. Breezie
;D :laughing7: :laughing9:
 

Attachments

  • DifferentStrokes[1].jpg
    DifferentStrokes[1].jpg
    25.1 KB · Views: 366
Upvote 0
Breezie said:
I want to know why all of you 'left over hippies' have black lights??? :headbang: LOL . . .I've got one too I use to test for old paint and cracks in china. New paint will fluoresce, but old paint will not. Breezie
it makes my lava lamp look groovy
 

Upvote 0
If you have a jewelers loop you can look for inclusions in the stone. Most diamonds are not clear of tiny little specs of carbon. An Eye clear diamond in an unmarked gold would not make sense. Lots of times they will cut the stone so the inclusions are in the bottom.
Hope its real for you :hello2: a jeweller can tell you in a few seconds.
 

Upvote 0
I believe diamonds glow under a black light because of the impurities in the diamond. (yes, I have a black light, or three, also - great hand-held one for checking the local sleeping area for scorpions - :laughing9:).

Usually, the glow is spotty in natural diamonds - if they are man-made, they tend to have a uniform coloring under a black light.

Maybe this will help (because this also works for other gems - like rubies).

http://www.ccmr.cornell.edu/education/ask/index.html?quid=848



Beth
 

Upvote 0

Top Member Reactions

Users who are viewing this thread

Back
Top